Beneath Yellowstone lies a magma reservoir, pulsing with molten and superheated rock and exsolved gases. Scientists have long ...

Ash from the 1912 Novarupta eruption periodically hits the west side of Kodiak Island, Larsen Bay and Karluk, roughly 65 ...

Skip Yosemite’s crowds and explore otherworldly landscapes with lava fields and steaming fumaroles along epic hikes in this California hidden gem.